Electric mining shovel hoist rope impact-reduction box

Details Electric mining shovel hoist rope impact-reduction box Electric mining shovel hoist rope impact-reduction box

B - Operations, Transporting

66

D

B66D 1/36 (2006.01)

Patent

CA 2725072

Disclosed is an impact-reduction box (10) through which the hoisting ropes of a mining shovel or other machine pass. The impact-reduction box includes a roller frame subassembly (12) and spring box subassemblies (30) attached thereto on either side. The impact-reduction box is configured so that when the hoisting cables impact the box during undesirable whipping, the roller frame subassembly will move in reaction while the spring box subassemblies will remain essentially motionless. The mining shovel will feel less of the impact of the jolting hoisting rope, and the rope will not suffer the wear and tear of frequent slapping against the machine such that the rope will be less likely to completely break.

L'invention porte sur une boîte de réduction d'impact à travers laquelle passent les câbles de levage d'une pelle excavatrice ou autre machine. La boîte de réduction d'impact comprend un sous-ensemble cadre de rouleau et des sous-ensembles boîtes à ressort fixés à celui-ci de chaque côté. La boîte de réduction d'impact est configurée de telle sorte que, lorsque les câbles de levage impactent la boîte durant un effet de fouet indésirable, le sous-ensemble cadre de rouleau se déplacera en réaction tandis que les sous-ensembles boîte à ressort resteront essentiellement immobiles. La pelle excavatrice ressentira moins l'impact du câble de levage subissant une secousse, et le câble ne souffrira pas de l'usure et du déchirement d'un claquement fréquent contre la machine; de telle sorte que le câble sera moins susceptible se rompre complètement.

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